Signments



(No Model) S. D. SAMUELS.

WASTE 000K FOR SINKS, &c. No. 327,597. Patented Oct. 6, 1885.

Invenfar Qldjlggel fl. Jamue Lg.

UNITED STATES PATENT OFFICE.

SAMUEL DAVID SAMUELS, OF BOSTON, MASS, ASSIGNOR, BY MESNE AS- SIGNMENTS, TO HIMSELF AND SAMUEL HANO, OF SAME PLACE.-

WASTE-COCK FOR SINKS, 80C.

SPECIFICATION forming part of Letters Patent No. 327,597, dated October 6, 1885.

' Application filed August 3, 1885.

To all whom it may concern.-

Be it known that I, SAMUEL DAVID SAM- UELs, of Boston, in the county of Suffolk, of the Commonwealth of Massachusetts, haveinvented a new and useful Improvement in \Vaste-Cocks for Sinks or Wash-Basins; and I do hereby declare the same to be described in the foliowing specification and represented in the accompanying drawings, of which Figure 1 is a top view, Fig. 2 a vertical and longitudidal section, and Fig. 3 a transverse and horizontal section, of a washbowl or sink waste-cock containing my invention, the nature of which is defined in the claims hereinafter presented.

In such drawings A denotes the body of the cock, such body being cylindrical and provided at its upper end with a flange, d.-

Within this body is a chamber, E, open at its upper end and extending down to within a short distance of a concavity, 6, made in the bottom of the said body, and constituting the seat of a convex valve, 13, arranged as represented in such concavity. The stem 0 of such valve is cylindrical and extends upward from the valve through a cylindrical passage, a, of like diameter with it, and leading from the bottom of the chamber E to the said valveseat. This stem 0 from the said bottom upward is fluted, or has in it lengthwise a series of grooves, f. There is keyed on the stem at or near its upper end a strainer or foraminousdisk, D, and there surrounds the stem concentricallyaspiral spring, F, which at its lower end rests 011 the bot tom of the chamber E, such spring at its up per end being in contact with the strainer.

A lever, G, is fulcrumed at one end to the flange d, the fulcrum being shown at b. To this lever a pitman, O, is jointed and rests at its foot in a socket in the upper end of the valve-stem. When the lever is forced downward, both the strainer and the valve will be simultaneously depressed and the spring will be contracted. Should there be at the time water above and on the strainer and in the chamber E, such water will flow into the grooves or channels f, and thence betwecnthe Serial No. 173,406. (No model.)

valve and its seat, and escape therefrom, provided the lower portions of the grooves f project below the valve-seat. On the lever G being relieved of downward pressure the spring will raise the valve up to its seat.

XVhen the valve is up to its seat, the chamber E will generally be filled with water. On the strainer and valve being moved downward no water can escape from the chamber E until the grooves f reach the valve-seat. In the meantime by the strainer being depressed watcr in the chamber will be forced upward through the strainer, and in so doing will loosen or relieve it of any deposits on it. Thus during part of the downward movement of the strainer jets of water will be forced upward through it to aid in cleansing it, and forcing out of the mouth of the chamber any deposits on the strainer, whereby such deposits will in a measure be prevented from passing into the chamber E and clogging it and the spring, ficiently the pitman may be drawn entirely out of the chamber E. This sink wastecock is specially useful in preventing the escape of sewer-gas upward through it.

I claiin l. The combination of the body A, provided with the open-top chamber E, the valveseat 6, and the passage a, arranged in it, as represent-ed,with the valve B, and its grooved stem 0, and with the spring F and the strainer D applied to such stem and within the said chamber, all being substantially and to operate as set forth.

2. The'combination of the lever G and its pitman O, with the body A, provided with the open-top chamber E, valve-seat e, and passage a, arranged in such body, as represented, and with the valve B, its grooved stem 0, and the spring F and strainer D applied to such stem, all being essentially as represented.

SAMUEL DAVID SAMUELS.

Witnesses:

It. H. EDDY, ERNEsr B. PRATT.

On lifting the lever G suf- 

